基于无线传感器网络的城市空气质量监测节点设计

The Urban Air Quality Monitoring Node Design of the Wireless Sensor Network

给出了面向城市空气质量监测应用的无线传感器网络CO_2监测节点设计.该节点采用锂电池供电,使用LM3S811作为微处理器来处理TGS4161传感器采集的数据,再通过具有ZigBee协议芯片的CC2420来实现对数据的传输以及各个节点之间的无线通信.现场测试结果表明,基于本文的方案设计的CO_2监测节点与其它同类型方案相比具有成本更低、监测精度更高、能效更高的优点.

This paper introduces the design framework of the carbon dioxide（ CO2） node of the wireless sensor network oriented to the urban air quality monitoring.The designed node uses the lithium batteries as the energy source,and uses the LM3S811 as the mic-roprocessor to deal with the data collected by the sensor TGS4161.Moreover,the designed node adopts the CC2420 to implement the data transmission and wireless communication among different nodes.The field test results show that,compared with the current other CO2 node,the designed node has the advantages of lower cost,higher monitoring precision and higher energy efficiency.